Concerns

• Concerns:

  1. Slope Stability
  2. Geohazard Assessment
  3. Ground Improvement
• Slope Stability

  • condition of inclined soil or rock slopes to withstand or undergo movement
  • driving force - weight of slope
  • resisting force - strength of soil along slip surface, buttress at toe
  • Factor of Safety - actual strength over required strength
• Geohazard Assessment

  • Is it safe to construct in the area? Yes - mitigate, No - abandon

  Landslide/Landslip

  • movement of a mass of rock, debris, or earth down a slope
  • can be initiated if slopes already on the verge of movement by:

  1. rainfall
  2. snowmelt
  3. changes in water level
  4. stream erosion
  5. earthquakes
  6. volcanic activity
  7. changes in ground water
  8. disturbance by human activities

  • Instrumentation Monitoring

  1. tiltmeter
  2. soil moisture sensors
  3. rain gauge
  4. data logger